Here are ten stocks ranked by ascending order of market cap that stand to gain if Governor Romney wins.

TransCanada's $5.3 billion Keystone XL Pipeline to link Western Canada and Bakken Oil production to the gulf coast is yet to be approved by the President.

"A Romney win should result in a rally in the share price on the assumption that Keystone XL will receive its Presidential Permit in due course. We estimate that the stock could rally in the 5% range," analyst Robert Kwan wrote in a report.

Conversely, the if Obama were to win, the uncertainty regarding the final decision will weigh on the stock.

Only 5 out of 15 analyst currently rate the stock a buy or outperform, with 9 analysts maintaining a hold rating on the stock.